Exercise apparatus



FIG. 1 is a perspective view of an exercise apparatus showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of the weights is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an exercise apparatus, as shown and described. 